Unified Ecoregions of Alaska: 2001
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Abstract
Unified Ecoregions of Alaska map portrays major ecosystems of the state of Alaska and neighboring portions of Canada and Russia. The word "Unified" in the title refers to the interdisciplinary, interagency, and international effort to derive this broad-scale ecosystem map. The ecoregions, as portrayed on this dataset , are large ecosystems primarily defined by climate and topography, with refinements from vegetation patterns, lithology, and surficial deposits. Ecoregions are tens of millions of acres in size and correspond to the Province level of Bailey's hierarchy (1980, 1995).
A total of thirty-two ecoregion units were mapped representing the major ecosystems of Alaska. Ecoregions were mapped in their entirety, with some spanning international boundaries to include portions of Canada and Russia. These ecoregions are characterized with written descriptions, tables of environmental variables, and photographs.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Unified Ecoregions of Alaska: 2001 |
| Series title | Open-File Report |
| Series number | 2002-297 |
| ISBN | 0607995777 |
| DOI | 10.3133/ofr2002297 |
| Year Published | 2003 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Contributing office(s) | Alaska Geospatial Data Clearinghouse |
| Description | 2 Plates: 53.45 x 35.65 inches and 53.79 x 35.75 inches |
| Country | United States |
| State | Alaska |
| Projection | Albers Equal Area Conical Projection |
| Scale | 4000000 |
| Additional Online Files (Y/N) | Y |
| Google Analytic Metrics | Metrics page |